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Nano-lamellar structured Fe2O3, method for preparing nano-lamellar structured Fe2O3 and application thereof

A nano-layered, fe3o4 technology, applied in the oxides of ferrous metals, magnetic field/electric field water/sewage treatment, iron oxide/iron hydroxide, etc., can solve the problem of low order degree and lack of spatial symmetry of ferric oxide Non-toxic production and environmental protection, smooth curve, good crystallinity, etc.

Inactive Publication Date: 2010-11-10
TIANJIN UNIV
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Problems solved by technology

Using the anionic surfactant sodium dodecylsulfonate as template, ferric iron tetroxide powder with ordered, spatially symmetrical nano-layered structure and good crystallinity was prepared by hydrothermal method in ethanol water system. Overcome the shortcomings of low crystallinity and low order degree of ferric oxide or lack of spatial symmetry in existing preparation methods

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  • Nano-lamellar structured Fe2O3, method for preparing nano-lamellar structured Fe2O3 and application thereof
  • Nano-lamellar structured Fe2O3, method for preparing nano-lamellar structured Fe2O3 and application thereof
  • Nano-lamellar structured Fe2O3, method for preparing nano-lamellar structured Fe2O3 and application thereof

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Abstract

The invention relates to Fe3O4 with a nanometer layered structure and a preparation method and an application thereof. Ferric trichloride and ferrous chloride as well as dodecyl sodium sulfate are taken as raw materials, then a water-alcohol mixed solution of sodium hydroxide is added, the mixture is refluxed, separated and dried, wherein, the mol ratio of the ferric trichloride to the ferrous chloride is between 1.85 and 2.2 to 1, the mol ratio of iron chloride to the dodecyl sodium sulfate is between 3 and 30 to 1, the mol ratio of the sodium hydroxide to the iron chloride is between 1 and 1.5 to 4, and the volume ratio of water to alcohol is between 1 and 0.5 to 1. The layered Fe3O4 can be directly used for sewage treatment agents and magnetic seed materials of superconducting magneticseparation sewage treatment due to the characteristics of a performance structure of the layered Fe3O4.

Description

Fe3O4 with nanolayer structure and its preparation method and application technical field The invention relates to the preparation of ferric oxide (Fe3O4), in particular to Fe3O4 with a nano-layered structure, its preparation method and its application in superconducting magnetic separation sewage treatment. Background technique Ferric oxide (Fe3O4) is a traditional magnetic material, and Fe3O4 nanoparticles are a new type of material with good magnetic properties, namely superparamagnetism. This material is very easy to magnetize under the external magnetic field; but when the external magnetic field is canceled, it is very easy to demagnetize, there is no hysteresis phenomenon, and the coercive force is zero. This magnetic material can be widely used in coating industry, industrial catalyst, magnetic fluid, magnetic recording material, magnetic microsphere and so on. Nanoparticles have enormous surface energy and can spontaneously agglomerate. In fact, nanoparticles sy...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/08C02F1/48
Inventor 万怡灶王静刘超何芳黄远
Owner TIANJIN UNIV